1. World Wind Energy Association. New world record in wind power capacity: 14.9GW added in 2006—worldwide capacity at 73.9GW. 2007.
2. Use of load control to regulate voltage on distribution networks with embedded generation;Scott;IEEE Trans Power Syst,2002
3. Wind electrical systems;Bhadra,2005
4. Jauch C, Sorensen P, Bak-Jensen B. International review of grid connection requirements for wind turbines. In: Proceedings of the Nordic wind power conference, Sweden, 2004.
5. National Grid Electricity Transmission PLC. The grid code, Issue 3, Revision 17. 2006.